| 基于混沌的彩色图像加密算法研究 |
| |
| 引用本文： | 吴新华.基于混沌的彩色图像加密算法研究[J].南通纺织职业技术学院学报,2013,13(2):19-23. |
| |
| 作者姓名： | 吴新华 |
| |
| 作者单位： | 南通纺织职业技术学院,南通,226007 |
| |
| 基金项目： | 国家自然科学基金项目，江苏省自然科学基金项目，南通市应用研究计划项目，江苏省高校自然科学研究项目，2011年江苏省政府留学奖学金 |
| |
| 摘 要： | 利用混沌信号的优良特性,结合彩色位级图像的内在特点,提出了一种新的彩色图像混沌加密算法。首先将彩色图像的RGB三基色分别划分为8幅位级图像并将其作为一个整体,利用超混沌系统生成混沌序列,进行位级图像置乱,然后利用Logistic混沌序列进行图像像素扩散,最后进行仿真测试和性能分析,结果表明所提算法具有较强的安全性和有效性。
|
| 关 键 词： | 混沌 图像加密 彩色图像 位级图像置乱 图像像素扩散 |
Color Image Encryption Algorithm Based on Chaos |
| |
| WU Xin-Hua.Color Image Encryption Algorithm Based on Chaos[J].Journal of Nantong Textile Vocational Technology college,2013,13(2):19-23. |
| |
| Authors: | WU Xin-Hua |
| |
| Affiliation: | WU Xin-Hua (Nantong Textile Vocational Technology College, Nantong 226007, China) |
| |
| Abstract: | A new chaotic encryption algorithm of color images is presented based on the properties of chaotic sequences and inherent characteristics of color bit-level images. At first, the plain RGB color image is divided into 8 bit-level images respectively which are treated as a group. Next the bit-level image group is permutated using chaotic sequences generated by hyper-chaotic system. Then the image pixel-level diffusion is carried on using logistic chaotic sequences. Finally,experiments are carried out to justify the superior security and effectiveness of the proposed algorithm. |
| |
| Keywords: | chaos image encryption color image bit-level image permutation pixel-level image diffusion |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
